Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

86°F

30°C

Humidity 10%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Heat Index83°F (28°C)
Last update 29 Aug 11:00 AM PDT
Extended Forecast for

13 Miles NE Mount Hamilton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. Southwest wind around 8 mph, with gusts as high as 18 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. West southwest wind around 8 mph.

    Low: 52 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80. West southwest wind 5 to 7 mph becoming east northeast in the afternoon.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 53. Light and variable wind becoming southwest around 6 mph in the evening.

    Low: 53 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77. Southwest wind 6 to 8 mph becoming south southeast in the morning.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. Southwest wind around 8 mph, with gusts as high as 18 mph.
Tonight
Clear, with a low around 52. West southwest wind around 8 mph.
Sunday
Sunny, with a high near 80. West southwest wind 5 to 7 mph becoming east northeast in the afternoon.
Sunday Night
Clear, with a low around 53. Light and variable wind becoming southwest around 6 mph in the evening.
Monday
Sunny, with a high near 77. Southwest wind 6 to 8 mph becoming south southeast in the morning.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NE Mount Hamilton CA
 37.49°N 121.48°W (Elev. 2799 ft)
11:36 am PDT Aug 29, 2026
12pm PDT Aug 29, 2026-6pm PDT Sep 4, 2026
 
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Additional Resources

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